net/qede/base: use available macro

- Use OSAL_PAGE_SIZE instead of assuming it to be 4096.
 - While at it make sure the minimum number of doorbells that can be issued
   is 4.

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>

diff --git a/drivers/net/qede/base/ecore.h b/drivers/net/qede/base/ecore.h
index a1748f4..823e8f8 100644 (file)
--- a/drivers/net/qede/base/ecore.h
+++ b/drivers/net/qede/base/ecore.h
@@ -50,6 +50,7 @@
 #define FCOE_BDQ_ID(_port_id) (_port_id + 2)
 /* Constants */
 #define ECORE_WID_SIZE         (1024)
+#define ECORE_MIN_WIDS         (4)
 
 /* Configurable */
 #define ECORE_PF_DEMS_SIZE     (4)

diff --git a/drivers/net/qede/base/ecore_dev.c b/drivers/net/qede/base/ecore_dev.c
index 67d8dd8..0cd6f22 100644 (file)
--- a/drivers/net/qede/base/ecore_dev.c
+++ b/drivers/net/qede/base/ecore_dev.c
@@ -1892,9 +1892,9 @@ static enum _ecore_status_t
 ecore_hw_init_dpi_size(struct ecore_hwfn *p_hwfn,
                       struct ecore_ptt *p_ptt, u32 pwm_region_size, u32 n_cpus)
 {
-       u32 dpi_page_size_1, dpi_page_size_2, dpi_page_size;
-       u32 dpi_bit_shift, dpi_count;
+       u32 dpi_bit_shift, dpi_count, dpi_page_size;
        u32 min_dpis;
+       u32 n_wids;
 
        /* Calculate DPI size
         * ------------------
@@ -1917,12 +1917,11 @@ ecore_hw_init_dpi_size(struct ecore_hwfn *p_hwfn,
         * 0 is 4kB, 1 is 8kB and etc. Hence the minimum size is 4,096
         * containing 4 WIDs.
         */
-       dpi_page_size_1 = ECORE_WID_SIZE * n_cpus;
-       dpi_page_size_2 = OSAL_MAX_T(u32, ECORE_WID_SIZE, OSAL_PAGE_SIZE);
-       dpi_page_size = OSAL_MAX_T(u32, dpi_page_size_1, dpi_page_size_2);
-       dpi_page_size = OSAL_ROUNDUP_POW_OF_TWO(dpi_page_size);
+       n_wids = OSAL_MAX_T(u32, ECORE_MIN_WIDS, n_cpus);
+       dpi_page_size = ECORE_WID_SIZE * OSAL_ROUNDUP_POW_OF_TWO(n_wids);
+       dpi_page_size = (dpi_page_size + OSAL_PAGE_SIZE - 1) &
+                       ~(OSAL_PAGE_SIZE - 1);
        dpi_bit_shift = OSAL_LOG2(dpi_page_size / 4096);
-
        dpi_count = pwm_region_size / dpi_page_size;
 
        min_dpis = p_hwfn->pf_params.rdma_pf_params.min_dpis;
@@ -1981,7 +1980,8 @@ ecore_hw_init_pf_doorbell_bar(struct ecore_hwfn *p_hwfn,
            ecore_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_CORE,
                                          OSAL_NULL) +
            ecore_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_ETH, OSAL_NULL);
-       norm_regsize = ROUNDUP(ECORE_PF_DEMS_SIZE * non_pwm_conn, 4096);
+       norm_regsize = ROUNDUP(ECORE_PF_DEMS_SIZE * non_pwm_conn,
+                              OSAL_PAGE_SIZE);
        min_addr_reg1 = norm_regsize / 4096;
        pwm_regsize = db_bar_size - norm_regsize;